Display screen or portion thereof with graphical user interface



1. Display screen or portion thereof with a graphical user interface

Front.

Fig. 1 is a front view of a display screen or portion thereof with a graphical user interface showing our design.

The outer edge of the portion of the display screen is understood to be congruent with the outer edge of the graphical user interface. 

CLAIM The ornamental design for a display screen or portion thereof with a graphical user interface, as shown and described. 